Rotational flow pulse type sand washing pen point

Abstract

The invention provides a rotational flow pulse type sand washing pen point which comprises a body, a spring pressing ring arranged at one end of the body, a pressing cap sealing the second end of the body, a pen core arranged in a sliding channel in a sliding manner and a spring, wherein the pen core comprises a closed end, a large pen point and a penholder arranged between the closed end and the large pen point; the large pen point penetrates through the pressing cap to extend out of the second end of the body; a hollow inner penholder cavity is formed in the penholder; the pen core further comprises a small pen point positioned at the end part of the inner penholder cavity; the small pen point extends out of the end part of the large pen point; a small pen point channel and a large pen point channel respectively extend to the end face of the small pen point and the end face of the large pen point; and the spring is arranged in the inner cavity of the body and positioned between spring pressing ring and the closed end. By adopting the rotational flow pulse type sand washing pen point, the sand washing efficiency is improved and on-site labor intensity is reduced.

Description

technical field [0001] The invention relates to the field of oil production, in particular to a sand washing pen point, in particular to a swirl and pulse type sand washing pen point, in particular to a swirl and pulse type sand washing pen point. Background technique [0002] Oil well sand washing mainly relies on the impact of liquid to discharge sand from the oil well. However, due to the limitation of equipment and construction technology, the sand washing application range is not ideal for particularly hard sand surfaces. For example, the top of the sand bridge is too hard. Moreover, this kind of sand washing consumes a lot of sand washing fluid, which brings a lot of pressure to environmental protection work, and also increases the labor intensity of on-site operators, which is not conducive to the harmonious development of society and affects the sand washing effect. to the normal production capacity of the reservoir. [0003] To sum up, the following problems exist ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a swirling pulsating sand-washing pen tip to solve the problem that the top of the sand bridge is too hard and the impact force of the sand-washing pen tip is insufficient when washing sand

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